CEL P1235 After turbo kit? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

86_ZN6 · 05-23-2013, 04:21 PM

Hello FI guys

Im getting a CEL P1235 code which is the fuel pump after a turbo install.

Any of you guys getting this?

Car would stall after like 20 miles and will not run again unless i reset the ecu.

Car will run good again but it comes back.

Let me know what you guys think

Sportsguy83 · 05-23-2013, 04:24 PM

Quote:

Originally Posted by 86_ZN6

Hello FI guys

Im getting a CEL P1235 code which is the fuel pump after a turbo install.

Any of you guys getting this?

Car would stall after like 20 miles and will not run again unless i reset the ecu.

Car will run good again but it comes back.

Let me know what you guys think

What FP did you install?? The FP installation is the trickiest part from a mod stand point of this car. I can now do it closed eyes.

crook · 05-23-2013, 04:33 PM

I'd pull the pump back out and triple check everything, you can't risk fuel issues

jamesm · 05-23-2013, 05:02 PM

yes, P1235 is 'fuel pump control out of range'. not good.

AVOturboworld · 05-23-2013, 05:19 PM

To speed this up, you should include this information when posting about the issue:

1) What turbokit?

2) What, if any, additional modifications besides the turbokit?

3) Was it installed at a shop, or by yourself?

4) Was the fuel pump modified or replaced with an upgraded unit?

86_ZN6 · 05-23-2013, 06:22 PM

Quote:

Originally Posted by AVOturboworld

To speed this up, you should include this information when posting about the issue:

1) What turbokit?

2) What, if any, additional modifications besides the turbokit?

3) Was it installed at a shop, or by yourself?

4) Was the fuel pump modified or replaced with an upgraded unit?

Paul, it is a custom turbo kit by WORKS

Car also have the full works exhaust system

Right now it is still using oem FP. But It was already replaced under the chirping TSB

I know pete will figure it out soon but while im waiting,i just wanted to hear what you guys think about the CEL

86_ZN6 · 05-23-2013, 06:42 PM

Quote:

Originally Posted by Sportsguy83

What FP did you install?? The FP installation is the trickiest part from a mod stand point of this car. I can now do it closed eyes.

Still oem but will be replacing it with the DW 65C

AVOturboworld · 05-23-2013, 06:53 PM

Quote:

Originally Posted by 86_ZN6

Right now it is still using oem FP. But It was already replaced under the chirping TSB

I know pete will figure it out soon but while im waiting,i just wanted to hear what you guys think about the CEL

It shouldn't have anything to do with the turbo kit, then. It's much more likely that when it was replaced under TSB, it wasn't done properly.

Turbo kits and super charger kits shouldn't touch the fuel system in any manner, unless there was injectors/fuel pump replaced during the install. So if there is an issue with the fueling, it's a separate (coincidental) issue.

King Tut · 05-23-2013, 08:58 PM

There are two fuel pumps, the mechanical direct injection pump which gets replaced under the TSB and the electric port fuel injection pump in the tank. Which pump is this CEL referencing? My guess is that your tuner is doing something weird with the direct injection that the car isn't liking.

Sportsguy83 · 05-23-2013, 09:06 PM

Quote:

Originally Posted by 86_ZN6

Still oem but will be replacing it with the DW 65C

yeah, like King Tut says, we have two pumps and the code might be because the tune is doing something weird with it, especially since you haven't installed yet an aftermarket in tank pump.

86_ZN6 · 05-23-2013, 11:50 PM

Quote:

Originally Posted by King Tut

There are two fuel pumps, the mechanical direct injection pump which gets replaced under the TSB and the electric port fuel injection pump in the tank. Which pump is this CEL referencing? My guess is that your tuner is doing something weird with the direct injection that the car isn't liking.

not sure which pump really is being referred by the CEL. i will try to replace in tank FP and see if it can remedy the issue.

what FP are you using by the way?

vubaru · 05-24-2013, 01:04 AM

This is actually a CEL I haven't seen.

Are you misfiring J? Does it stall in gear or just in neutral? Any other DTCs or symptoms?

What ROM revision are you running if you are on Ecutek? The JA00C ROM revisions have a fuel control issue and you are supposed to use the JA01C. Some more info on your issues could help us diagnose.

86_ZN6 · 05-24-2013, 01:36 AM

Quote:

Originally Posted by vubaru

This is actually a CEL I haven't seen.

Are you misfiring J? Does it stall in gear or just in neutral? Any other DTCs or symptoms?

What ROM revision are you running if you are on Ecutek? The JA00C ROM revisions have a fuel control issue and you are supposed to use the JA01C. Some more info on your issues could help us diagnose.

long time no see mark.

I will have to ask pete what ROM we are currently running.

the car stalls while running. I took the car home from works and drove through 37. At first i was boosting all the way and everything was fine then after about 30 miles of driving, the car started to jerk and Ultimately it stalls on me while im in low gear.

The car would start up again but it automatically shuts off.

I pulled the battery waited for the ECU to reset then i was able to move again.

vubaru · 05-24-2013, 01:49 AM

Stalling while in operation is not fun, but it's interesting that resetting the ECU remedies the issue temporarily. Maybe it's tune related?

But some early stock cars reported the issue: http://www.ft86club.com/forums/showt...t=12428&page=2 The prospect of an OEM issue could exist.

05-23-2013, 04:21 PM	#1
86_ZN6 Senior Member Join Date: Apr 2012 Drives: 86 ZN6 Location: SF Bay Area, NorCal Posts: 4,682 Thanks: 1,317 Thanked 2,072 Times in 1,222 Posts Mentioned: 126 Post(s) Tagged: 1 Thread(s)	CEL P1235 After turbo kit? Hello FI guys Im getting a CEL P1235 code which is the fuel pump after a turbo install. Any of you guys getting this? Car would stall after like 20 miles and will not run again unless i reset the ecu. Car will run good again but it comes back. Let me know what you guys think

05-23-2013, 08:58 PM	#9
King Tut NASA SpecE30 Racer Join Date: May 2012 Drives: 2006 Honda S2000 Location: Gulf Breeze, FL Posts: 7,279 Thanks: 607 Thanked 5,759 Times in 3,055 Posts Mentioned: 274 Post(s) Tagged: 10 Thread(s)	There are two fuel pumps, the mechanical direct injection pump which gets replaced under the TSB and the electric port fuel injection pump in the tank. Which pump is this CEL referencing? My guess is that your tuner is doing something weird with the direct injection that the car isn't liking. __________________ - King Tut Street/Track Car: 2006 Honda S2000 TT3 \|\| Race Car: 1987 BMW 325is SpecE30 \|\| Tow Vehicle: 2014 RAM 1500 EcoDiesel Sold Cars: 2012 BMW M3 \|\| 2013 Subaru BRZ \|\| 2012 Porsche Cayman R \|\| 2009 Chevrolet Z06 \|\| 2009 BMW M3 \|\| 2004 BMW M3 \|\| 2004 Nissan 350Z

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05-23-2013, 04:33 PM	#3
crook Senior Member Join Date: Jul 2012 Drives: storm black GT Location: Australia Posts: 117 Thanks: 144 Thanked 33 Times in 23 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	I'd pull the pump back out and triple check everything, you can't risk fuel issues

05-23-2013, 05:02 PM	#4
jamesm Banned Join Date: Mar 2013 Drives: 2013 FR-S Location: Orlando, FL Posts: 2,929 Thanks: 1,166 Thanked 2,293 Times in 1,180 Posts Mentioned: 313 Post(s) Tagged: 4 Thread(s)	yes, P1235 is 'fuel pump control out of range'. not good.

05-23-2013, 05:19 PM	#5
AVOturboworld Join Date: Jan 2012 Drives: 2013 "AVO Orange" FR-S Location: Seattle, WA Posts: 1,067 Thanks: 69 Thanked 2,277 Times in 636 Posts Mentioned: 108 Post(s) Tagged: 2 Thread(s)	To speed this up, you should include this information when posting about the issue: 1) What turbokit? 2) What, if any, additional modifications besides the turbokit? 3) Was it installed at a shop, or by yourself? 4) Was the fuel pump modified or replaced with an upgraded unit?

05-24-2013, 01:04 AM	#12
vubaru Now with Boost! Join Date: Aug 2012 Drives: 2013 SWP BRZ Ltd. Location: Bay Area, CA Posts: 415 Thanks: 281 Thanked 424 Times in 257 Posts Mentioned: 24 Post(s) Tagged: 0 Thread(s)	This is actually a CEL I haven't seen. Are you misfiring J? Does it stall in gear or just in neutral? Any other DTCs or symptoms? What ROM revision are you running if you are on Ecutek? The JA00C ROM revisions have a fuel control issue and you are supposed to use the JA01C. Some more info on your issues could help us diagnose.

05-24-2013, 01:49 AM	#14
vubaru Now with Boost! Join Date: Aug 2012 Drives: 2013 SWP BRZ Ltd. Location: Bay Area, CA Posts: 415 Thanks: 281 Thanked 424 Times in 257 Posts Mentioned: 24 Post(s) Tagged: 0 Thread(s)	Stalling while in operation is not fun, but it's interesting that resetting the ECU remedies the issue temporarily. Maybe it's tune related? But some early stock cars reported the issue: http://www.ft86club.com/forums/showt...t=12428&page=2 The prospect of an OEM issue could exist.

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